Solid-Vapor Equilibrium
Description: A small amount of solid iodine is sealed into a glass tube. A qualitative idea of the amount of vapor at various temperatures can be gained by immersing the tubes in a hot water bath.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1985 Vol: 2 Page: 78
Keywords: Solid-Vapor equilibrium, Iodine, Vapor pressure vs. Temperature, Sublimation
Rating: 
Hazard: Some
- Acute toxicity hazard
- Inhalation hazard
- Skin corrosion hazard
- Serious eye damage
- Electric shock hazard
- Burn hazard
Effectiveness: Average
- Results are observable with guidance
- Somewhat connected conceptually to course material
- Mild effects are seen by audience
- Good reliability
- Time to results is high
Difficulty: Some
- Simple procedures
- Simple manipulations for most to perform
- Demos at non-standard conditions
Safety Precautions:
- Eye protection required
- Gloves recommended
- Perform in a well-ventilated area
- Use of UL approved three-prong plug and outlet
- Absorbent material on hand
- Handle ampule with care
Class: Liquids and Solids, Intermolecular Forces
Division: General
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